Minutes a day to mental fitness, with all-new, genuinely fun brain games from399 Games... author Nancy Linde, in an easy-to-take-along size. von Linde, Nancy

Cross-train your brain. All it takes is ten to fifteen minutes a day of playing the right games. (It’s fun.) Exercising your brain is like exercising your body—with the right program, you can keep your brain young, strong, agile, and...